Improvement in plows



, z Sheets-Sheet 2 J. P. & J. E. PRUTZMAN & J. -P. McINTYRE'.

PLOW.

lamented May 2, 18.76.

N.PETER$, FHOTO-LITHOGRAPNE R. WASHINGTON, D C.

UNI TED STATES PATENT orrroa JOHN P. PRUTZMAN, JOSEPH E. PRUTZMAN,-ANDJAMES P. MGINTYR THREE RIVERS, MICHIGAN.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No. 177,000; dated May 2,1876; application filed v March 8, 1876.

' Joseph and State of Michigan, have invented an Improvement in Plows,of which the following is a specification:

The nature of our invention relates to oertain improvements in aside-draft plow; and consists, first, in the manner of securing the shinto the mold-board; second, in the pecu-' liar means for securing ahorizontal jointerarm to the neck of the standard; and, further, in thecombination, with the peculiar standard, of the peculiar point,land-side, moldboard, and shin, all as more fully hereinafter explained.

' Figure 1, Sheet 1, and Fig. 2 are, respectively, perspective views ofthe plow, looking at it from "furrow and land? Figs. 3 and 4 are frontand rear elevations.- Figs. 5, 6, and 7, Sheet 2, are perspective. viewsof the standard, looking at it from the rear and both sides.

,In the drawing, A represents the standard, on whose toe is bolted thepoint B, in the rear of whose side the land-side G is bolted to the sideflange of the standard. D is the mold-board, whose breast is secured bycountersunk bolts to the face side of the standard, which, above the topof the land-side, is curved suddenly toward the said mold-board, withalso a torsional twist, to conform to the position and outline of themold-board, which it receives and supports. Above the'moldboard the neckof the standard is curved back or inclined again to a point directlyover the land-side, so that the beam, when secured to its head, will beover the landside, thus making it a side-draft plow. D is the shin ofthe mold-board, whose heel forms a portion of the laud-side, and issecured by a bolt to the side of the standard. The furrow edge of theshin abuts against the breast of the mold-board, while the other side iscut in, in line with inner face of the standard, whose front edge isreceived in an oifset in the rear edge of the shin. The latter issecured thereto by a dovetail or hooked lug,

a, cast on its rear edge, which lug hooks into a recess, at, Sheet 2,cast. in the standard before the heel of the shin -is bolted to the sideof said standard.

As will be seen on reference to Sheet 1 of the drawings, the land-sideand shin of the mold-board have a perpendicular out, while. the standardis so curved above the land-side as to form a support for the breast ofthe moldboard, while it is freed from all friction from the land,passing all obstructions beyond the line of the beam, thus preventingclogging,

and is finally curved at the neck, so as to 7 bring the beam directlyover the land-side.

E is a horizontal arm, with a lateral lug, b, cast on the heel, and ahook-lug, I), which embraces the angular front edge of the neck ofstandard, while the lug 11 passes behind it. The arm may be adjusted andsecured at I any point on the neck by setscrewc, tapped through the lugb, as shown; but a wedge or key may be used for the purpose in lieu ofthe set-screw,if preferred.

A jointer, E, or a cutter, is secured by a bolt, d, through a verticalslot in its shank to the front end of the arm, the shank of the jointerbeing halved onto that of the'arm with square shoulders, so that asingle bolt suflices to keep the jointer in position. The latter can, bymeans of the connection described, be readily adjusted to any requiredslight alterations in horizontal plane without disturbing the arm,which, from its. greater' weight, is not so easy of adjustment, and, be

sides, the jointer can be quickly replaced by a vertical cutter, ifdesired.

What we claim as our invention is- 1. In a side-draft plow, thecombination,

with the standard A,of the form substantially as shown, having thedovetail recess a, of the shin D, inclosing the front edge of the saidstandard, and cut inwardly to correspond with the face of the same, andhaving the lug a, all substantially as described and shown.

2. The combination, with the standard of a plow, of the arm E, havingthe lugs b I),

E, OF

which grasp the neck of the standard, and the set-screw 0, settingagainst the said standard, constructed and arranged substantially.

as described and shown.

3. In a plow, the combination of the stmidal'd A, of the formsubstantially as described,

of the point B, the land-side (J, themold-board D, and the shin D, whenthe several parts are :constructed, arranged, and connectedsubstantialliy as shown and specified. 1 JOHN 'P. PRUTZMAN.

JOSEPH E. PRUTZMAN. JAMES P. MOINTYRE. Witnesses; JOHN GOWLING,

D. D. THORP.

